Ok the amount of people downplaying Sakaguchi is now getting ridiculous. It's ok if you don't like the guy, his style, his idea of gaming but that doesn't change the impact both negative and positive he's put into the industry.
Sakaguchi has never been too great when it comes to story, Lost Odyssey and FF5 are the best stories he's ever written imo and their story isn't even that great. He's oldschool and has similar ideas to Miyamoto in that game comes first, story comes after. If I was Square I would never give Sakaguchi a movie directing position and I would rather give the role to Kitase or Nomura simply because they play more into their strengths.
Sakaguchi's forte in my view is obviously in his turn based battle system. Lost Odssey and Blue Dragon feel old school, but at the same time add small inventive aspects that make them much more fun. To put it simply I feel at home somehow when I'm playing a Sakaguchi game, extremely comforting. If it were my choice to create a dreamteam turn based RPG team I would definitely have Sakaguchi in there to work on battle system. For story I would definitely have someone else write a script instead.